Which action is NOT required for an applicant to take before sitting for the fourth examination?

The action that is not required for an applicant to take before sitting for the fourth examination is passing a mock examination with a minimum score. This requirement does not typically exist in the context of preparing for certification exams. Instead, requirements generally focus on submitting specific documentation, such as a written request, and demonstrating commitment to improvement through study efforts or reapplying if necessary.

This approach emphasizes the importance of self-assessment and ongoing education rather than subjecting applicants to an additional testing hurdle that may not be an official prerequisite. Such requirements are designed to streamline the process, allowing applicants to demonstrate readiness through documented efforts rather than further testing, which can lead to additional stress or barriers to entry.